// ***************************************************************************************************************************
// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file *
// * distributed with this work for additional information regarding copyright ownership.  The ASF licenses this file        *
// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance            *
// * with the License.  You may obtain a copy of the License at                                                              *
// *                                                                                                                         *
// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
// *                                                                                                                         *
// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an  *
// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the        *
// * specific language governing permissions and limitations under the License.                                              *
// ***************************************************************************************************************************
package org.apache.juneau.internal;

import java.io.*;

/**
 * Wraps an existing {@link Writer} where the {@link #close()} method is a no-op.
 * 
 * <p>
 * Useful in cases where you're working with streams that should not be implicitly closed.
 */
public final class NoCloseWriter extends Writer {

	private final Writer w;
	
	/**
	 * Constructor.
	 * 
	 * @param w The writer to wrap.
	 */
	public NoCloseWriter(Writer w) {
		this.w = w;
	}
	
	@Override /* Writer */
	public Writer append(char c) throws IOException {
		return w.append(c);
	}
	
	@Override /* Writer */
	public Writer append(CharSequence csq) throws IOException {
		return w.append(csq);
	}
	
	@Override /* Writer */
	public Writer append(CharSequence csq, int start, int end) throws IOException {
		return w.append(csq, start, end);
	}
	
	@Override /* Writer */
	public void close() throws IOException {
		w.flush();
	}
	
	@Override /* Writer */
	public void flush() throws IOException {
		w.flush();
	}
	
	@Override /* Writer */
	public void write(char[] cbuf) throws IOException {
		w.write(cbuf);
	}
	
	@Override /* Writer */
	public void write(char[] cbuf, int off, int len) throws IOException {
		w.write(cbuf, off, len);
	}
	
	@Override /* Writer */
	public void write(int c) throws IOException {
		w.write(c);
	}
	
	@Override /* Writer */
	public void write(String str) throws IOException {
		w.write(str);
	}
	
	@Override /* Writer */
	public void write(String str, int off, int len) throws IOException {
		w.write(str, off, len);
	}
}